Real Tool: This hash generator performs actual cryptographic calculations in your browser using the Web Crypto API. No data is sent to any server - all processing happens locally.
Hash Algorithm Reference
| Algorithm | Output Length | Security Status | Use Case |
|---|---|---|---|
| MD5 | 128 bits (32 hex) | Broken - Do not use for security | Checksums only (non-security) |
| SHA-1 | 160 bits (40 hex) | Deprecated - Collisions found | Legacy compatibility only |
| SHA-256 | 256 bits (64 hex) | Secure | General purpose, certificates |
| SHA-384 | 384 bits (96 hex) | Secure | Higher security requirements |
| SHA-512 | 512 bits (128 hex) | Secure | Maximum security, large files |
Common Hash Uses
- File Integrity: Verify downloaded files haven't been tampered with
- Password Storage: Store password hashes (use bcrypt/Argon2, not raw SHA)
- Digital Signatures: Sign documents and code
- Data Deduplication: Identify duplicate files
- Blockchain: Link blocks in cryptocurrency chains
Verify File Hashes (Command Line)
# Linux/macOS
md5sum filename.zip
sha256sum filename.zip
# macOS specific
shasum -a 256 filename.zip
# Windows PowerShell
Get-FileHash filename.zip -Algorithm SHA256
Get-FileHash filename.zip -Algorithm MD5
Security Warning: Never use MD5 or SHA-1 for security purposes (passwords, signatures, certificates). They have known vulnerabilities. Use SHA-256 or stronger for all security applications.
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